Talking-machine.



Patented June 6,4916.

INVENTOR WITNESSES ATTORNEY CARL SCHROETER,

OF BERLIN, GERMANY, ASSIGNOR TO VICTOR TALKING MACHINE COMPANY, ACORPORATION OF NEW JERSEY. I

TALKING MACHIN'E.

Specification of Letters Patent.

Application filed September 5, 1913. Serial No. 788,198.

To all whom it may concern:

Be it known that I, CARL Sonnonrnn, a subject of the Emperor of Germany,and a resident of the city of Berlin, Germany,

have invented certain new and useful Improvements in Talking-Machines,of which the following is a specification.

The main objects of this invention are to provide an improved talkingmachine of simple, compact, and efiicient construction;

to provide @improved sound amplifying .means; and to provide otherimprovements as will appear hereinafter.

In the accompanying drawings, Figure 1 is a perspective view of atalking machinetion on line 33 of Fig. 2'.

Referring to thedrawings, one embodiment of this invention consists of atalking machine,.including an external or main cabinet or casing 1,comprising a substantially flat comparatively thick and rigid horizontal base or bottom wall 2, which may be of any suitable fform,'butwhich, in planular outline, preferably tapers or flares from one endtoward its opposite end, and is preferably approximately in the form ofa truncated triangle, curved lines to conform to the shape of thevertical walls hereinafter described, and to give a graceful appearanceto, the cabinet.

Spaced above and in vertical alinement with the base 2 is a flathorizontal wall 3 of approximately the same planular dimensions andshape as the base 2, but of a smaller thickness, which forms the topwall of the main casing.

Connecting the base2 and the top wall 3, and rigidly secured thereto andextending along the marginal side edges thereof respectively, are twoforwardly diverging transversely vertical walls 4 and 5 forming the sidewalls of the main casing. Each of these side walls 4' and 5 ispreferably of substantially uniform thickness throughout substantiallyits entire length and extends longitudinally, preferably in the form ofa compound curve, the two side walls being arranged symmetrically withrespect to the longitudinal axis of the main casing, and

preferably'fiaring from the rear edge of the and bounded mainly by-,slightly forwardly from Patented une 6, 1916.

base 2 forwardly. .The inner portions of the inner surfaces of the sidewalls are preferably longitudinally convex, as at 6 and 7 respectively,and the outer portions of the inner surfaces of the side walls arepreferably longitudinally concave as at 8 and 9' respectively, theconvex portion of the inner surface meeting-the concave portion of theinner surface about midway of the length of the side wall in eachinstance The two side walls 4 .and 5 are connectedv along the rear edgeof the base 2 by a vertical rear Wall 10 which extends from the uppersurface of the base 2 to the under surface of the top wall 3 and isrigidly secured to,

the base andtop wall. This back wall 10 is preferably of substantiallyuniform thick-' ness and comprises a main central, substantially erablyspaced slightly in the front of the rear edges of the side substantiallyperpendicular and symmetrical with respect to the longitudinal axis of.the main casing. This central portion 10 'is connected to the rear edgesof the side walls 4 and 5', and is fiat vertical portion 10 which isprefwalls 4 and 5 by the inter'iorly concave ap- I proximatelysemicylindrical portions 10'.

which extend rearwardly from the flat portion 10 forming the rear endsof two sound amplifiers or of a duplex sound amplifier, as

will appear hereinafter.

Arranged symmetrically within the external or main casing 1 andspacedfrom the side walls 4 and 5 and the back wall 10 thereof, to formtherewith a duplex sound amplifier, internal or secondary casing 15.This secondary casing may be of any suitable shape,

but, to coiiperate effectively with the main casing in amplifyingsounds,

is preferably substantially pear-shaped in planular outas will appearhereinafter, is an V line, and comprises a continuous transverselyvertical wall, curved longitudinally in horizontal section and extendingvertically from 1 the top surface of the base 2 to the under surface ofthe top wall 3 of the main casing,

and rigidly secured thereto to form the op- I posite sides 16 and 17,and the-inner end 18 of the secondary casing. The inner end wall 18 ispreferably substantially semi-elliptical in horizontal .section. Thesides 16 and 17 of the secondary casing preferably converge their innerends and then diverge slightly and at their front ends terminateapproximately flush with the front the secondary casing. This verticalfront' edge of the base 2. The front edges of the side Walls 16 and 17are connected by a transversely vertical wall 19 preferably curvedlongitudinally in horizontal section, and exteriorly concave, formingthe front end of wall 19- is preferably slightly less in width than theback wall 18 of the secondary casing, and extends from .theupper'surface of the base 2 to the under surface of the top Wall 3 andis rigidly secured to the base 2 and top wall 3. The outer portions ofthe sides 16 and 17 of the secondary casing are preferably exteriorlyconcave in horizontal section and curved horizontally to corre spondwith the horizontally curved outer portions 8 and 9 of the innersurfaces of the.

side walls 4 and 5 of the exterior casing respectively, to formtherewith the outer portions of the side walls of the delivery ends ormajor portions of two forwardly diverging sound amplifiers 25 and 26,which communicate adjacent their inner or inlet ends through the passage27 between the back-wall 10 of the main casing and the back wall 18 ofthe secondary casing, the side walls 8 and 16, 9 and 17 of these soundamplifiers 25 and 26 being, in the instance illustrated, substantiallysymmetrical with respect to the longitudinal axes of the soundamplifiers 25 and 26 respectively.

The arrangement and construction of the walls of the main casing andofthe secondary casing are such that two spaced outlets 28 and 29, areformed in the front of the main cabinet for the two sound amplifiers 25and 26 respectively. These outlets 28 and 29, in

the instance illustrated, are substantially rectangular and square inelevation or outline,

and are separated by the front vertical wall 19 of the secondary casing.The front edges of the base 2 and top wall 3 may be curved gracefullyand symmetrically in opposite directions from the front wall 19 of'thesecondary casing to meet the front edges of the side walls 4 and 5 ofthe main casing, and

may be curved centrally to conform to the curvature of the front wall 19of the secondary casing.

To enhance the sounds amplifiers, and to provide a screen for eachamplifier, the outlet of each amplifier is pro vided with a plurality ofvertical horizontally spaced sounding posts 30, the lower ends of whichare secured to the upper surface of-th-e base 2 of the main cabinet,preferably in a row close to and following the contour of the frontedge. of the base, and

the upper ends of which terminate at points spaced at differentdistances beneath the top wall 3 of the main cabinet, theposts 30 beingof different lengths to vibrate sympathetically in response to varioustones.

For reproducing sounds there is arranged slightly above the top wall 3of the delivered by the main casing, a horizontal disk record support 35which is mounted to rotate upon the upper end of a spindle 36 whichprojects downwardly through the central portion of the top 3, and intothe space sur rounded by the secondary casing and is actuated by a motor(not shown) arranged within the secondary casing. Arranged above therecord support 35 to cooperate with a sound record 36' upon the support,is any suitable sound box or sound reproducer 37 which is connected toand communicates with the smaller end of a hollow tapering tone arm 38.The tone arm 38 extends rearwardly in a substantially horizontaldirection throughout the greater portion of its length and then curvesdownwardly and terinmates in a substantially circular downwardly facingopen end '39 which communicateswith the upper end of a downwardlyflaring hollow bracket 40, the lower portion of which terminates in aforwardly facing open lower end 41 provided'with an outwardly extendingflat vertical flange 42, and is rigidly secured to the outer, surface ofthe flat vertical central portion 10 of the back -wall 10 of the maincasing by means of screws 43 extending through the flange 42. The lowerend of the bracket 40 registers with an inlet. aperture 45 providedtherefor in the central portion of the back wall 10 of the main casingand communicates laterally through this inlet 45 with the space 27connecting the smaller or inlet ends of the major portions of the twosound amplifiers, or duplex sound amplifiers, 25 and 26. The tone arm 38is arranged to swing about a vertical axis coincident with thelongitudinal axis of the upper end of the bracket 40, so that thesmaller end of the tone arm 38 will travel across the record 36' topermit the sound box to cooperate therewith in reproembodied, it isevident that the invention is not limited to the specific formdisclosed, but might be embodied in other forms without departing fromthe spirit of the invention or the scope of the appended claims.

Having thus described my invention, I claim and desire to protect byLetters Pat ent of the United States:

1. In a. talking machine, the combination of a main casing having arearwall and reversely curved side walls, a secondary casing within saidmain casing extending vertically the-full height of the interior of saidcasing and having a rear wall spacedlfrom the rear wall of said maincasing and forming there with a sound passage, and having reverselycurved side walls spaced from the side walls means, and a sound conduitcommunicating with said sound reproducing means and communicating withsaid sound passage within said main casing through the said rear wall ofsaid main casin 2. In a talking machine, the combination of a maincasing in planular outline approximating the form of a truncatedtriangle and having a rear wall and side walls, a secondary casingwithin said main casing and forming a motor compartment, said secondarycasing having a rear wallspaced from the rear wall of said main casingand forming therewith a sound passage, and having sidewalls spaced fromthe side walls of said main casing and forming therewith two divergingsound amplifiers substantially pear-shaped in longitudinal section,sound reproducing means, and a sound conduit communicating with saidreproducing means and communicating with said sound passage within saidmain casing through the rear Wall of the main casing.

3. In a talking machine. the combination of a main casing in planularoutline generally approximating the form of a truncated triangle andhaving a rear wall and revel'sely curved constantly diverging sidewalls, a secondary casing within said main casing and forming a motorcompartment, said secondary casing having a rear wall spaced from therear wall of said main casing and forming therewith a sound passage, andhaving reversely curved side walls spaced from and substantiallysymmetrical to the side walls of said main casing and forming therewithtwo diverging sound amplifiers having their smaller ends curving intosaid sound passage, sound reproducing means, and a sound conduitcommunicating with said reproducing means and communicating with saidsound passage within said main casing through the rear wall of the mamcasing.

4. In a talking machine, the combination with a main casing, of asecondary casing forming with said main casing two diverging soundamplifiers, sound reproducing means connnunicating with both of saidamplifiers and a plurality of sounding posts ofdifi'erent lengthsrigidly mounted at one end in said main cabinet an extending across thedischarge end of said amplifiers.

Berlin, 12th day of August, 1913.

CARL SCI-IROETER. lVitnesses:

lVoLnmL-m I'IA UP'l, I-IAYBWIG (l. NEUBAUER.

